I am one of the founders of dotBERLIN GmbH & Co. KG which was established in June 2005 and aims at launching the TLD ".berlin" as one of the first urban TLD worldwide.
".berlin" is a Community TLD. By means of this TLD customers and provides of products and services get together more easily and more intuitively. ".berlin" will be the first TLD to use part of the namespace as directory: For instance the electricians guild will list all electricians at www.electricians.berlin.
In early 2008 we expect to file the application for the TLD ".berlin" with ICANN (www.icann.org). The launch itself will also take place in 2008.